Title
Manuscript notes on sources for the history of duplex telegraphy
Reference
UK0108 NAEST 020/349
Date
n.d.
Scope and Content
Manuscript list of sources for the history of duplex telegraphy. Gives title, subject and journal. Refers to dispute between Professor Edlund and William Siemens re the invention of duplex telegraphy.
Physical description
Number of pieces: 1, Pages/folios: 1
Language
English.
Persons keyword
Edlund Professor, Siemens Sir Charles William
Subject
Telegraph equipment
Conditions governing access
Open
Level of description
file